Fertilization time and method of Bletilla striata

Bletilla striata is a very common traditional Chinese medicine, and now it has a relatively large planting area in our country. Due to the increase of market demand, the production requirements of Bletilla striata will become larger and larger. Fertilization is very important if you want to increase the yield of Bletilla striata during planting. So how to apply fertilizer to plant Bletilla striata? When should I fertilize it? The following editor to introduce to you, let's have a look!

1. Fertilization time

Bletilla striata has a great demand for nutrition in its growth, so fertilization must be done well. Bletilla striata has different nutritional requirements at each growth stage. Especially in the tuber expansion period of Bletilla striata from August to September, the nutritional demand will increase sharply. Bletilla striata should be fertilized once about two weeks after planting, and the fertilizer is mainly thin feces and urine. Attention should be paid to controlling the amount of topdressing each time to meet the nutritional needs of the growth of Bletilla striata. Then in the reasonable topdressing of calcium superphosphate, liquid fertilizer and other fertilizers, to keep the soil moist, in case of drought to do a good job of watering. Especially during the high temperature in summer, it is best to water it twice a day.

2. Characteristics of fertilizer requirement

Nitrogen, phosphorus and potassium are the three most basic elements in fertilization, while Bletilla striata has a high demand for nitrogen, phosphorus and potassium. Each element is indispensable, if there is too little nitrogen fertilizer, it will affect the growth of branches and leaves, lead to the baldness and beauty of Bletilla striata plants, seriously affect the growth of Bletilla striata, and yellowing of leaf stems. If there is a lack of phosphate fertilizer, it will inhibit the growth of roots and hinder the growth of new buds. The function of potash fertilizer is to effectively improve the disease resistance of Bletilla striata, promote the growth of pseudobulbs, and improve the yield and quality of Bletilla striata.

3. Fertilization method

Base manure topdressing

Base fertilizer is indispensable for planting Bletilla striata. Before planting Bletilla striata, we should apply sufficient base fertilizer in the soil to improve soil fertility and enhance the growth ability of Bletilla striata. The base fertilizer is mainly rotten farm manure, while the unmature farm fertilizer is burnt Bletilla striata, which reduces the yield and quality of Bletilla striata. Because the growth rate of Bletilla striata is relatively slow, topdressing is mainly applied in a small amount. In spring and autumn and other Bletilla striata growth season, it is necessary to appropriately shorten the frequency of topdressing, usually once a semimonthly in spring. Less fertilizer can be applied in summer, and even no fertilizer can be applied if the base fertilizer is sufficient.

Foliar fertilizer

The main purpose of foliar fertilizer application is to supplement the trace elements needed for the growth of Bletilla striata. Enhance the growth of leaves, improve the photosynthetic capacity, increase the accumulation of photosynthetic matter in Bletilla striata. Foliar fertilizer is applied about once a week. When spraying foliar fertilizer, we should pay attention to comprehensive and uniform, to ensure that each leaf is treated. Then it is necessary to observe the leaves to control and adjust the spraying frequency, while the bright leaves represent adequate nutrition, while the gloomy leaves need to be sprayed in time. When spraying, we should pay attention to both sides should be sprayed in place, adjust the spraying angle to improve the effect of foliar fertilizer.

The above is a brief introduction of the time and method of fertilization for Bletilla striata. The methods of topdressing base fertilizer can be ditch application, strip application, according to their own fertilization habits. That's all for today's introduction. This article is for reference only. Thank you for your reading and support.